Needle Bar Height - Dürkopp Adler 867 Service Instructions Manual

2.6.2

Needle bar height

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Caution: Danger of injury !
Turn the main switch off !
Check and set the needle bar height only with the sewing
machine switched off.
Standard checking
The needle bar' s height is to be set in a way that the hook tip stands in
the middle of the needle scarf with the stitch length set to " 0 " and in
the looping stroke position.
–
Set the stitch length handwheel to "0".
–
Arrest the sewing machine in position I (looping stroke position).
–
Check the position of the needle in relation to the hook tip.
Correction
–
Set the stitch length handwheel to "0".
–
Unscrew the thread guide 1.
–
Loosen the needle fastening screw 3.
–
Shift the needle bar 2 with needle 4.
Upon shifting the needle bar must not be turned.
The needle scarf must be directed to the hook tip.
–
Tighten the needle bar fastening screw.
–
Mount the thread guide 1 again.
A wrong setting of the needle bar height can have the following
consequences:
–
Damage on the hook tip.
–
Jamming of the needle thread between needle an needle guard.
–
Missed stitches and thread breakage.
ATTENTION !
After a correction of the needle bar height the needle guard's position
has to be checked (see chapter 2.6.4).
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